Word Wrap or Auto Wrap

Hi,

I have a number of themes which I am considering to use, but they all have the same problem, I typed some text in the WYSIWYG editor and/or comments box and the text does not auto wrap, it just keeps going out all the way to the right

If I type in this line, it will go all the way to the right without being wrapped, see example: http://wellnessnote.com/?p=9
dfsdfsdffffffffffffffffffffffffrtrhrtghgfbhfdgbfsdvfdvdfsdfsdffffffffffffffffffffffffrtrhrtghgfbhfdgbfsdvfdvdfsdfsdffffffffffffffffffffffffrtrhrtghgfbhfdgbfsdvfdvdfsdfsdffffffffffffffffffffffffrtrhrtghgfbhfdgbfsdvfdvdfsdfsdffffffffffffffffffffffffrtrhrtghgfbhfdgbfsdvfdvdfsdfsdffffffffffffffffffffffffrtrhrtghgfbhfdgbfsdvfdvdfsdfsdffffffffffffffffffffffffrtrhrtghgfbhfdgbfsdvfdvdfsdfsdffffffffffffffffffffffffrtrhrtghgfbhfdgbfsdvfdv

I’ve seen this issue mentioned in other posts from way back like 5 4 years ago but there’s isn’t any explanation or help with fix available.

Please advise.
Thank YOU!!!